| article html file updated | 30 August 2025 01:30 CEST | Update | https://www.mdpi.com/2079-9276/6/4/59 |
| article html file updated | 16 July 2022 07:00 CEST | Update | - |
| article html file updated | 8 February 2020 19:21 CET | Update | - |
| article html file updated | 27 September 2019 23:37 CEST | Update | - |
| article html file updated | 2 May 2019 19:13 CEST | Update | - |
| article html file updated | 2 January 2018 10:31 CET | Update | - |
| article html file updated | 24 October 2017 15:43 CEST | Original file | - |
| article xml uploaded. | 24 October 2017 15:42 CEST | Update | https://www.mdpi.com/2079-9276/6/4/59/xml |
| article xml uploaded. | 24 October 2017 15:42 CEST | Original file | - |
| article pdf uploaded. | 24 October 2017 15:42 CEST | Version of Record | https://www.mdpi.com/2079-9276/6/4/59/pdf |
